L-202B VLF Preamplifier
The L-202B fixed tuned preamplifier is an
amplifier and filter combination designed to
improve your present receiver or converter's VLF
and LF reception.
The unique design with a sharp roll off filter
cleans up broadcast inter-modulation, reduces
noise, and boosts gain throughout the entire LF
spectrum. 10 kHz to 520 kHz broadband
coverage with adjustable gain eliminates the
need for an external antenna tuner. The L-202B is
designed for use with typical 50 foot SWL wire
antennas.
Features
Broadband
coverage, 10 kHz to
520 kHz
(no tuning
necessary)
Adjustable gain 28
dB max.
8 dBm max.
power output.
LED power
indicator.
Antenna returned to
the receiver in the
off position.
External 120 vac /
12 vdc supply
included
.
L-202B Specifications
Size:
4.19"L x 2.74"W x 1.57"H
Filter Rejection:
>40 dB in AM BC passband and higher
Gain:
28 dB maximum (adjustable)
Pass Band:
10 to 520 kHz + 4 dB
Max. (linear) Output Power:
8 dBm
Output Impedance:
50 - 75 ohms
Input Impedance:
2k ohms
Input/Output Jacks:
RCA
DC Power:
12 - 15 vdc, 30 - 40 mA.
AC Power:
120 vac / 12 vdc external power pack
with 2.5 mm plug
L-202B VLF Preamplifier
Product Warranty
LF Engineering Co. warrants that, at the time of shipment the products
manufactured by LF Engineering Co. are free from defects in material and
workmanship. LF Engineering Co. obligation under this warranty is limited to
replacement or repair of such products within 1 year from the date of shipment.
For sales or return authorization, contact LF Engineering Co. at (860)
526-4759. For technical support call (203) 467-3590.
LF Engineering E-mail address: [email protected]
Copyright 2004 by LF Engineering Co.
All rights reserved.
Printed in U.S.A.
LF Engineering Co.
17 Jeffry Road
East Haven, CT 06513